Manual bending machine for steel bar machining

Abstract

The utility model belongs to the technical field of reinforcing steel bar machining, particularly relates to a manual bending machine for reinforcing steel bar machining, and aims to solve the problems that an existing manual bending machine is inconvenient to clamp reinforcing steel bars of different specifications, is poor in clamping stability and affects the bending effect, and adopts the following scheme that the manual bending machine comprises a working table plate, a square hole is formed in the top of the working table plate, and the square hole is formed in the bottom of the working table plate; a square hole is formed in the workbench plate, the same two-way screw rod is rotationally installed between the inner walls of the front side and the rear side of the square hole, two moving plates are installed on the outer side of the two-way screw rod in a threaded mode, a plurality of clamping wheels are fixedly installed on the tops of the moving plates, and a fixing plate is fixedly installed on one side of the workbench plate. The steel bar clamping device is reasonable in structural design, the multiple clamping wheels are driven to be tightly connected with steel bars in an abutting mode through cooperation of the rotary disc, the two-way screw and the movable plate, the function of clamping the steel bars of different specifications can be achieved, the stability of clamping the steel bars is improved by limiting rotation of the rotary disc, and reliability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar processing, in particular to a manual bending machine for steel bar processing. Background Art

[0002] Rebar refers to steel used for reinforced concrete and prestressed reinforced concrete. Its cross section is round, sometimes square with rounded corners, including plain round bars, ribbed bars and twisted bars. During construction on a construction site, it is often necessary to bend the ends of the steel bars according to the actual construction conditions. When bending the ends of the steel bars at a certain angle, due to the limitations of the construction area environment, some large bending machines are not convenient for transportation and use, and they are often bent manually. This method has the disadvantages of low efficiency, high labor intensity and poor bending effect, so some small manual bending machines are used.

[0003] However, in the process of implementing the embodiments of the utility model, the inventors found that there are at least the following defects in the background technology: the existing manual bending machine is not convenient for clamping steel bars of different specifications, and the clamping stability is poor, which affects the bending effect. Therefore, we propose a manual bending machine for steel bar processing to solve this problem. Utility Model Content

[0004] The utility model aims to solve the problems raised in the above-mentioned background technology and provides a manual bending machine for steel bar processing.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A manual bending machine for steel bar processing comprises a workbench, a square hole is provided on the top of the workbench, a same bidirectional screw is rotatably installed between the front and rear inner walls of the square hole, two movable plates are installed on the outer threads of the bidirectional screw, a plurality of clamping wheels are fixedly installed on the top of the movable plate, a fixed plate is fixedly installed on one side of the workbench, one end of the bidirectional screw is rotatably installed on the fixed plate and a turntable is fixedly installed, two built-in grooves are provided on one side of the turntable, two insertion rods are slidably installed in the built-in grooves, a plurality of slots are provided on one side of the fixed plate, the plurality of slots are arranged in a circular array, the insertion rods are movably clamped in the corresponding slots, and a same bending plate is fixedly installed on one end of the two insertion rods.

[0007] In a preferred embodiment, a driving shaft is rotatably installed at the bottom of the work table, a disc and a worm gear are provided on the outer fixed sleeve of the driving shaft, a bending wheel is fixedly installed on the top of the disc, an incomplete annular groove is opened on the top of the work table, the bending wheel is slidably installed in the incomplete annular groove, and a fixed wheel is fixedly installed on the top of the work table.

[0008] In a preferred embodiment, two support plates are fixedly mounted on the top of the workbench, and a same worm is rotatably mounted on the two support plates. The worm is meshed with the worm wheel, and a handle is fixedly mounted on one end of the worm.

[0009] In a preferred embodiment, two guide plates are fixedly installed between the front and rear inner walls of the square hole, two guide holes are opened on one side of the movable plate, and the guide plates are slidably installed in the corresponding guide holes.

[0010] In a preferred embodiment, a limit spring is fixedly mounted on one side of the insertion rod, and one end of the limit spring is fixedly connected to an inner wall of one side of the corresponding built-in groove.

[0011] In a preferred embodiment, a sliding hole is provided on one side of the bent plate, a sliding plate is slidably installed in the sliding hole, a limiting plate is fixedly installed on one side of the sliding plate, a short plate is fixedly installed on one side of the turntable, a limiting groove is provided on one side of the short plate, the limiting plate is movably engaged in the limiting groove, and a push handle is fixedly installed on one side of the sliding plate.

[0012] In a preferred embodiment, a same transverse plate is fixedly installed between the left and right inner walls of the sliding hole, the sliding plate is slidably sleeved on the outside of the transverse plate, and a same return spring is fixedly installed between the sliding plate and one side of the transverse plate.

[0013] In the utility model, a manual bending machine for steel bar processing is described, which drives the bidirectional screw to rotate by rotating the turntable, thereby driving the two moving plates to move toward one side close to each other, so that multiple clamping wheels are closely in contact with the steel bars, and the clamping function can be realized for steel bars of different specifications;

[0014] In the utility model, the manual bending machine for steel bar processing releases the bending plate to allow the insertion rod to be reinserted into the two slots, limits the position of the turntable, and improves the stability of the steel bar clamping;

[0015] The utility model has a reasonable structural design. Through the cooperation of a turntable, a bidirectional screw and a movable plate, a plurality of clamping wheels are driven to closely contact with the steel bars, and the clamping function can be realized for steel bars of different specifications. Moreover, by limiting the rotation of the turntable, the stability of the steel bar clamping is improved, and the reliability is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a manual bending machine for steel bar processing proposed by the utility model from a first perspective;

[0017] Figure 2This is a schematic cross-sectional structure diagram of a fixing plate of a manual bending machine for steel bar processing proposed by the utility model;

[0018] Figure 3 for Figure 2 A partial enlarged view of part A;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure from a second viewing angle of a manual bending machine for steel bar processing proposed by the utility model.

[0020] In the figure: 1. workbench; 2. bidirectional screw; 3. movable plate; 4. clamping wheel; 5. fixed plate; 6. turntable; 7. insertion rod; 8. bending plate; 9. disc; 10. worm gear; 11. bending wheel; 12. fixed wheel; 13. worm; 14. handle; 15. guide plate; 16. limit spring; 17. sliding plate; 18. limit plate; 19. short plate; 20. horizontal plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-4 A manual bending machine for steel bar processing comprises a workbench 1, a square hole is provided on the top of the workbench 1, a same bidirectional screw 2 is rotatably installed between the inner walls on the front and rear sides of the square hole, two movable plates 3 are installed on the outer threads of the bidirectional screw 2, a plurality of clamping wheels 4 are fixedly installed on the top of the movable plate 3, a fixed plate 5 is fixedly installed on one side of the workbench 1, one end of the bidirectional screw 2 is rotatably installed on the fixed plate 5 and a turntable 6 is fixedly installed, two built-in grooves are provided on one side of the turntable 6, two plug rods 7 are slidably installed in the built-in grooves, a plurality of slots are provided on one side of the fixed plate 5, the plurality of slots are arranged in a circular array, the plug rods 7 are movably connected in the corresponding slots, and a same bending plate 8 is fixedly installed on one end of the two plug rods 7.

[0023] In the utility model, a driving shaft is rotatably installed at the bottom of the workbench 1, a disc 9 and a worm gear 10 are provided on the outer fixed sleeve of the driving shaft, a bending wheel 11 is fixedly installed on the top of the disc 9, an incomplete annular groove is opened on the top of the workbench 1, the bending wheel 11 is slidably installed in the incomplete annular groove, a fixed wheel 12 is fixedly installed on the top of the workbench 1, the rotation of the disc drives the bending wheel to perform circular motion, and the bending wheel bends the steel bars by cooperating with the fixed wheel.

[0024] In the utility model, two support plates are fixedly installed on the top of the workbench 1, and the same worm 13 is rotatably installed on the two support plates. The worm 13 is meshed with the worm wheel 10, and a handle 14 is fixedly installed at one end of the worm 13. The worm is rotated by rotating the handle to drive the disc to rotate.

[0025] In the utility model, two guide plates 15 are fixedly installed between the front and rear inner walls of the square hole, and two guide holes are opened on one side of the movable plate 3. The guide plates 15 are slidably installed in the corresponding guide holes to guide and support the movable plate.

[0026] In the present invention, a limit spring 16 is fixedly installed on one side of the insertion rod 7, and one end of the limit spring 16 is fixedly connected to the inner wall of one side of the corresponding built-in groove, which plays a role in limiting the insertion rod.

[0027] In the utility model, a sliding hole is provided on one side of the bent plate 8, a sliding plate 17 is slidably installed in the sliding hole, a limiting plate 18 is fixedly installed on one side of the sliding plate 17, a short plate 19 is fixedly installed on one side of the turntable 6, a limiting groove is provided on one side of the short plate 19, the limiting plate 18 is movably engaged in the limiting groove, and a push handle is fixedly installed on one side of the sliding plate 17. The movement of the bent plate is limited by the cooperation of the limiting plate and the limiting groove, thereby improving the stability of the connection between the insertion rod and the slot.

[0028] In the utility model, a same transverse plate 20 is fixedly installed between the inner walls on the left and right sides of the sliding hole, the sliding plate 17 is slidably sleeved on the outer side of the transverse plate 20, and a same reset spring is fixedly installed between the sliding plate 17 and one side of the transverse plate 20, which plays a role in guiding the movement and resetting the sliding plate.

[0029] The two movable plates 3 are moved to one side so that the two movable plates 3 can be brought into contact with the fixed wheel 12, and the push handle is moved to one side, thereby driving the sliding plate 17 to move to one side, so that the limiting plate 18 is disengaged from the limiting groove, and then the bending plate 8 is pulled to one side, thereby driving the two insertion rods 7 to move to one side and compressing the limiting spring 16, so that the insertion rod 7 is disengaged from the slot, and the rotating disk 6 is rotated to drive the bidirectional screw 2 to rotate, thereby driving the two movable plates 3 to move to the side close to each other, so that a plurality of clamping wheels 4 are closely in contact with the steel bars, and the clamping function can be realized for steel bars of different specifications, releasing the bending plate 8 so that the insertion rod 7 is reinserted into the two slots, and the rotating disk 6 is limited to improve the stability of the steel bar clamping, and the rotating handle 14 is rotated to drive the worm 13 to rotate, thereby driving the driving shaft and the disc 9 to rotate together, thereby driving the bending wheel 11 to rotate to realize the bending operation of the steel bar.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A manual bending machine for steel bar processing, characterized in that: The invention comprises a workbench (1), wherein a square hole is provided on the top of the workbench (1), and a same bidirectional screw (2) is rotatably installed between the inner walls on the front and rear sides of the square hole, and two movable plates (3) are installed on the outer threads of the bidirectional screw (2), and a plurality of clamping wheels (4) are fixedly installed on the top of the movable plate (3); a fixed plate (5) is fixedly installed on one side of the workbench (1), and one end of the bidirectional screw (2) is rotatably installed on the fixed plate (5) and fixedly installed with a turntable (6), and two built-in grooves are provided on one side of the turntable (6), and two insertion rods (7) are slidably installed in the built-in grooves; a plurality of slots are provided on one side of the fixed plate (5), and the plurality of slots are arranged in a circular array, and the insertion rods (7) are movably clamped in the corresponding slots, and one end of the two insertion rods (7) is fixedly installed with the same bent plate (8).

2. A manual bending machine for steel bar processing according to claim 1, characterized in that: A driving shaft is rotatably mounted at the bottom of the workbench (1), a disc (9) and a worm gear (10) are provided on the outer fixed sleeve of the driving shaft, a bending wheel (11) is fixedly mounted on the top of the disc (9), an incomplete annular groove is provided on the top of the workbench (1), the bending wheel (11) is slidably mounted in the incomplete annular groove, and a fixing wheel (12) is fixedly mounted on the top of the workbench (1).

3. A manual bending machine for steel bar processing according to claim 2, characterized in that: Two support plates are fixedly mounted on the top of the workbench (1), and a same worm (13) is rotatably mounted on the two support plates. The worm (13) is meshed with the worm wheel (10), and a rotating handle (14) is fixedly mounted on one end of the worm (13).

4. A manual bending machine for steel bar processing according to claim 1, characterized in that: Two guide plates (15) are fixedly installed between the front and rear inner walls of the square hole, and two guide holes are provided on one side of the movable plate (3). The guide plates (15) are slidably installed in the corresponding guide holes.

5. A manual bending machine for steel bar processing according to claim 1, characterized in that: A limit spring (16) is fixedly mounted on one side of the insertion rod (7), and one end of the limit spring (16) is fixedly connected to an inner wall of one side of the corresponding built-in groove.

6. A manual bending machine for steel bar processing according to claim 1, characterized in that: A sliding hole is provided on one side of the bent plate (8), a sliding plate (17) is slidably installed in the sliding hole, a limiting plate (18) is fixedly installed on one side of the sliding plate (17), a short plate (19) is fixedly installed on one side of the turntable (6), a limiting groove is provided on one side of the short plate (19), the limiting plate (18) is movably engaged in the limiting groove, and a push handle is fixedly installed on one side of the sliding plate (17).

7. A manual bending machine for steel bar processing according to claim 6, characterized in that: A same transverse plate (20) is fixedly installed between the inner walls on the left and right sides of the sliding hole, the sliding plate (17) is slidably sleeved on the outer side of the transverse plate (20), and a same return spring is fixedly installed between the sliding plate (17) and one side of the transverse plate (20).

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